1 /**************************************************************************/
2 /* ---------------------------------------------------------------------- */
3 /* Copyright (C) 2006 - 2008 FRESCOR consortium partners: */
5 /* Universidad de Cantabria, SPAIN */
6 /* University of York, UK */
7 /* Scuola Superiore Sant'Anna, ITALY */
8 /* Kaiserslautern University, GERMANY */
9 /* Univ. Politécnica Valencia, SPAIN */
10 /* Czech Technical University in Prague, CZECH REPUBLIC */
12 /* Thales Communication S.A. FRANCE */
13 /* Visual Tools S.A. SPAIN */
14 /* Rapita Systems Ltd UK */
17 /* See http://www.frescor.org for a link to partners' websites */
19 /* FRESCOR project (FP6/2005/IST/5-034026) is funded */
20 /* in part by the European Union Sixth Framework Programme */
21 /* The European Union is not liable of any use that may be */
22 /* made of this code. */
25 /* This file is part of FWP (Frescor WLAN Protocol) */
27 /* FWP is free software; you can redistribute it and/or modify it */
28 /* under terms of the GNU General Public License as published by the */
29 /* Free Software Foundation; either version 2, or (at your option) any */
30 /* later version. FWP is distributed in the hope that it will be */
31 /* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */
32 /* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
33 /* General Public License for more details. You should have received a */
34 /* copy of the GNU General Public License along with FWP; see file */
35 /* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */
36 /* Cambridge, MA 02139, USA. */
38 /* As a special exception, including FWP header files in a file, */
39 /* instantiating FWP generics or templates, or linking other files */
40 /* with FWP objects to produce an executable application, does not */
41 /* by itself cause the resulting executable application to be covered */
42 /* by the GNU General Public License. This exception does not */
43 /* however invalidate any other reasons why the executable file might be */
44 /* covered by the GNU Public License. */
45 /**************************************************************************/
53 #include <semaphore.h>
56 * Message queue structure
60 unsigned int nr_pending; /**< number of messages in the queue */
61 struct fwp_msgb* queue[FWP_MSGQ_SIZE];
62 unsigned int in; /**< add at offset (in % size) */
63 unsigned int out; /**< extracted from offset (out % size) */
64 pthread_mutex_t lock; /**< queue lock */
65 sem_t msg_sem; /**< semaphore to block on empty mqueue */
67 /* queue reject policy */
68 /*queue_rejection_policy qr_policy;*/
71 void fwp_msgq_init(struct fwp_msgq *msgq);
73 int fwp_msgq_enqueue(struct fwp_msgq *msgq, struct fwp_msgb* msgb);
75 struct fwp_msgb* fwp_msgq_dequeue(struct fwp_msgq *msgq);
76 void fwp_msgq_dequeue_all(struct fwp_msgq *msgq);
78 /* void fwp_msgq_setpolicy */
80 #endif /* _FWP_MSGQ_H */